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Asbestos air sampling results for December 2001

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Laboratory report detailing transmission electron microscopy analysis of air samples collected in December 2001.

NYC-WTC_000130525–000130535

Folder label: “E-Mail 1/2/02

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NYC 9/11 Public Portal Document

NO QC EVALUATION HAS BEEN PERFORMED, DATA VALIDITY IS UNSUBSTANTIATED AND THE DATA SHOULD BE USED WITH DISCRETION WTC TEDLAR BAG AIR ANALYSIS, TO-15 MODIFIED METHOD DRAFT GCIMS Results for 12/06/01 File Name NYC370 NYC371 NYC372 NYC373 NYC376 NYC375 Sample Location Instrument Blank Tedlar Bag Blank Washing Tent Austin Tobin Plaza North Tower South Tower Ambient Air Plume Plume Sample Number A07187 A07189 A07188 A07190 Sample Height Breathing Level Breathing Level Ground Level Ground Level Sample Volume 250 mL 250 mL 250 mL 10 mL 200 mL Reporting Limit (RL) 20 20 20 20 500 25 Sample Conc. Units ppb., ppb,, ppb„ ppb„ ppb„ ppb„ Propylene RL RL RL RL 6600 280 Freon 22 RL RL RL RL RL 58 Dichlorodifluoromethane RL RL RL RL RL 70 Dichlorotetrafluoroethane RL RL RL RL RL RL Chloromethane RL RL RL RL 6000 380 Vinyl Chloride RL RL RL RL RL RL 1,3-Butadiene RL RL RL RL RL RL Bromomethane RL RL RL RL RL RL Chloroethane RL RL RL RL RL RL Trichlorofluoromethane RL RL RL RL RL 130 Isopropyl Alcohol RL RL RL RL RL 220 Acetone RL RL RL 32 11000 4500 Trichlorotrifluoroethane RL RL RL RL RL RL 1,1-Dichloroethene RL RL RL RL RL 51 3-Chloro ro ene RL RL RL RL RL RL Methylene Chloride RL RL RL RL RL 84 MTBE RL RL RL RL RL 280 trans-1,2-Dichloroethene RL RL RL RL RL RL Hexane RL RL RL RL 510 51 1,1-Dichloroethane RL RL RL RL RL RL Vinyl Acetate RL RL RL RL RL RL 2-Butanone RL RL RL RL 3000 440 cis-1,2-Dichloroethene RL RL RL RL RL RL Ethyl Acetate RL RL RL RL RL RL Chloroform RL RL RL RL RL RL Tetrahydrofuran RL RL RL RL 1300 100 1,1,1-Trichloroethane RL RL RL RL RL 100 C clohexane RL RL RL RL RL RL Carbon Tetrachloride RL RL RL RL RL RL 1,2-Dichloroethane RL RL RL RL RL RL Benzene RL RL RL RL 9800 520 Heptane RL RL RL RL RL 57 Trichloroethene RL RL RL RL RL RL 1,2-Dichloro ro ane RL RL RL RL RL RL 1,4-Dioxane RL RL RL 34 RL 49 Methyl Isobutyl Ketone RL RL RL RL RL 120 cis-1,3-Dichloro ro ene RL RL RL RL RL RL Toluene RL RL RL RL 5700 200 trans-1,3-Dichloro ro ene RL RL RL RL RL RL 1,1,2-Trichloroethane RL RL RL RL RL RL 2-Hexanone RL RL RL RL RL RL Tetrachloroethene RL RL RL RL RL RL Dibromochloromethane RL RL RL RL RL RL 1,2-Dibromoethane RL RL RL RL RL RL Chiorobenzene RL RL RL RL RL RL Ethylbenzene RL RL RL RL 6800 65 m&p-Xylenes RL RL RL RL 580 94 0-X lene RL RL RL RL RL 36 Styrene RL RL RL RL 1500 82 Bromoform RL RL RL RL RL RL 1,1,2,2-Tetrachloroethane RL RL RL RL RL RL 4-Eth (toluene RL RL RL RL RL RL 1,3,5-Trimeth (benzene RL RL RL RL RL RL 1,2,4-Trimeth lbenzene RL RL RL RL RL RL 1,3-Dichlorobenzene RL RL RL RL RL RL 1,4-Dichlorobenzene RL RL RL RL RL RL Benzyl Chloride RL RL RL RL RL RL 1,2-Dichlorobenzene RL RL RL RL RL RL 1,2,4-Trichlorobenzene RL RL RL RL RL RL Hexachloro-1,3-Butadiene RL RL RL RL RL RL

NYC-WTC-000130532

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NYC-WTC_000130532Source: NYC Law Department, mirrored locally

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NYC-WTC_000130435 · Box DEP Box 53

Summary of asbestos air sampling results from October 1, 2001, including PCM and TEM standard comparisons for NYC and NJ locations.

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NYC-WTC_000130438 · Box DEP Box 53

Draft special investigative audit report on environmental data from the World Trade Center site prepared by IT Corporation.

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